That is an inspiring story in a scary kind of way. You have had quite the harrowing journey! Like you, I like bloodroot a lot and like you I had less than pleasant results when I applied it externally. I think that the zinc, at least in the product I used, makes that stuff react with just anything you put it on and it can indeed eat some big, slow healing holes that leave ugly scars. Nevertheless, it has been a proven part of many successful formulas, such as the one by Dru Browning, the very similar Jon Barron Blood Support product and the famous Cansema products of Alpha Omega Labs.
Though I would not recommend bloodroot as a primary cancer or Hep-C treatment if my beloved oleander was available, I DO recommend it as a strong supporting supplement and believe it is especially good when it comes to the liver. I wish you had known about oleander sooner. Perhaps your journey would have been a bit shorter and less horrific!
BTW, what form do you take bloodroot in? By itself or in combination with other herbs like in the aforementioned formulas?
May you have continued success in your road to health and happiness!